source3/passdb/pdb_interface.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Bartlett                        2002
   5    Copyright (C) Jelmer Vernooij                        2002
   6    Copyright (C) Simo Sorce                             2003
   7    Copyright (C) Volker Lendecke                        2006
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "system/passwd.h"
  25 #include "passdb.h"
  26 #include "secrets.h"
  27 #include "messages.h"
  28 #include "serverid.h"
  29 #include "../librpc/gen_ndr/samr.h"
  30 #include "../librpc/gen_ndr/drsblobs.h"
  31 #include "../librpc/gen_ndr/ndr_drsblobs.h"
  32 #include "../librpc/gen_ndr/idmap.h"
  33 #include "../lib/util/memcache.h"
  34 #include "nsswitch/winbind_client.h"
  35 #include "../libcli/security/security.h"
  36 #include "../lib/util/util_pw.h"
  37 #include "passdb/pdb_secrets.h"
  38 #include "lib/util_sid_passdb.h"
  39 #include "idmap_cache.h"
  40 #include "lib/util/string_wrappers.h"
  41 #include "lib/global_contexts.h"
  42
  43 #undef DBGC_CLASS
  44 #define DBGC_CLASS DBGC_PASSDB
  45
  46 static_decl_pdb;
  47
  48 static struct pdb_init_function_entry *backends = NULL;
  49
  50 static void lazy_initialize_passdb(void)
  51 {
  52         static bool initialized = False;
  53         if(initialized) {
  54                 return;
  55         }
  56         static_init_pdb(NULL);
  57         initialized = True;
  58 }
  59
  60 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
  61                                   const char **name,
  62                                   enum lsa_SidType *psid_name_use,
  63                                   uid_t *uid, gid_t *gid);
  64
  65 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  66 {
  67         struct pdb_init_function_entry *entry = NULL;
  68
  69         if(version != PASSDB_INTERFACE_VERSION) {
  70                 DEBUG(0,("Can't register passdb backend!\n"
  71                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  72                          "while this version of samba uses version %d\n",
  73                          version,PASSDB_INTERFACE_VERSION));
  74                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  75         }
  76
  77         if (!name || !init) {
  78                 return NT_STATUS_INVALID_PARAMETER;
  79         }
  80
  81         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  82
  83         /* Check for duplicates */
  84         if (pdb_find_backend_entry(name)) {
  85                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  86                 return NT_STATUS_OBJECT_NAME_COLLISION;
  87         }
  88
  89         entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
  90         entry->name = smb_xstrdup(name);
  91         entry->init = init;
  92
  93         DLIST_ADD(backends, entry);
  94         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  95         return NT_STATUS_OK;
  96 }
  97
  98 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  99 {
 100         struct pdb_init_function_entry *entry = backends;
 101
 102         while(entry) {
 103                 if (strcmp(entry->name, name)==0) return entry;
 104                 entry = entry->next;
 105         }
 106
 107         return NULL;
 108 }
 109
 110 const struct pdb_init_function_entry *pdb_get_backends(void)
 111 {
 112         return backends;
 113 }
 114
 115
 116 /*
 117  * The event context for the passdb backend. I know this is a bad hack and yet
 118  * another static variable, but our pdb API is a global thing per
 119  * definition. The first use for this is the LDAP idle function, more might be
 120  * added later.
 121  *
 122  * I don't feel too bad about this static variable, it replaces the
 123  * smb_idle_event_list that used to exist in lib/module.c.  -- VL
 124  */
 125
 126 static struct tevent_context *pdb_tevent_ctx;
 127
 128 struct tevent_context *pdb_get_tevent_context(void)
 129 {
 130         return pdb_tevent_ctx;
 131 }
 132
 133 /******************************************************************
 134   Make a pdb_methods from scratch
 135  *******************************************************************/
 136
 137 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
 138 {
 139         char *module_name = smb_xstrdup(selected);
 140         char *module_location = NULL, *p;
 141         struct pdb_init_function_entry *entry;
 142         NTSTATUS nt_status;
 143
 144         lazy_initialize_passdb();
 145
 146         p = strchr(module_name, ':');
 147
 148         if (p) {
 149                 *p = 0;
 150                 module_location = p+1;
 151                 trim_char(module_location, ' ', ' ');
 152         }
 153
 154         trim_char(module_name, ' ', ' ');
 155
 156
 157         DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
 158
 159         entry = pdb_find_backend_entry(module_name);
 160
 161         /* Try to find a module that contains this module */
 162         if (!entry) {
 163                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 164                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 165                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 166                         SAFE_FREE(module_name);
 167                         return NT_STATUS_UNSUCCESSFUL;
 168                 }
 169         }
 170
 171         /* No such backend found */
 172         if(!entry) {
 173                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 174                 SAFE_FREE(module_name);
 175                 return NT_STATUS_INVALID_PARAMETER;
 176         }
 177
 178         DEBUG(5,("Found pdb backend %s\n", module_name));
 179
 180         nt_status = entry->init(methods, module_location);
 181         if (!NT_STATUS_IS_OK(nt_status)) {
 182                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
 183                         selected, nt_errstr(nt_status)));
 184                 SAFE_FREE(module_name);
 185                 return nt_status;
 186         }
 187
 188         SAFE_FREE(module_name);
 189
 190         DEBUG(5,("pdb backend %s has a valid init\n", selected));
 191
 192         return nt_status;
 193 }
 194
 195 /******************************************************************
 196  Return an already initialized pdb_methods structure
 197 *******************************************************************/
 198
 199 static struct pdb_methods *pdb_get_methods_reload( bool reload )
 200 {
 201         static struct pdb_methods *pdb = NULL;
 202         const char *backend = lp_passdb_backend();
 203         NTSTATUS status = NT_STATUS_OK;
 204
 205         if ( pdb && reload ) {
 206                 if (pdb->free_private_data != NULL) {
 207                         pdb->free_private_data( &(pdb->private_data) );
 208                 }
 209                 status = make_pdb_method_name(&pdb, backend);
 210         }
 211
 212         if ( !pdb ) {
 213                 status = make_pdb_method_name(&pdb, backend);
 214         }
 215
 216         if (!NT_STATUS_IS_OK(status)) {
 217                 return NULL;
 218         }
 219
 220         return pdb;
 221 }
 222
 223 static struct pdb_methods *pdb_get_methods(void)
 224 {
 225         struct pdb_methods *pdb;
 226
 227         pdb = pdb_get_methods_reload(false);
 228         if (!pdb) {
 229                 char *msg = NULL;
 230                 if (asprintf(&msg, "pdb_get_methods: "
 231                              "failed to get pdb methods for backend %s\n",
 232                              lp_passdb_backend()) > 0) {
 233                         smb_panic(msg);
 234                 } else {
 235                         smb_panic("pdb_get_methods");
 236                 }
 237         }
 238
 239         return pdb;
 240 }
 241
 242 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
 243 {
 244         struct pdb_methods *pdb = pdb_get_methods();
 245         return pdb->get_domain_info(pdb, mem_ctx);
 246 }
 247
 248 /**
 249  * @brief Check if the user account has been locked out and try to unlock it.
 250  *
 251  * If the user has been automatically locked out and a lockout duration is set,
 252  * then check if we can unlock the account and reset the bad password values.
 253  *
 254  * @param[in]  sampass  The sam user to check.
 255  *
 256  * @return              True if the function was successful, false on an error.
 257  */
 258 static bool pdb_try_account_unlock(struct samu *sampass)
 259 {
 260         uint32_t acb_info = pdb_get_acct_ctrl(sampass);
 261
 262         if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
 263                 uint32_t lockout_duration;
 264                 time_t bad_password_time;
 265                 time_t now = time(NULL);
 266                 bool ok;
 267
 268                 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
 269                                             &lockout_duration);
 270                 if (!ok) {
 271                         DEBUG(0, ("pdb_try_account_unlock: "
 272                                   "pdb_get_account_policy failed.\n"));
 273                         return false;
 274                 }
 275
 276                 if (lockout_duration == (uint32_t) -1 ||
 277                     lockout_duration == 0) {
 278                         DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
 279                                   "can't reset autolock\n"));
 280                         return false;
 281                 }
 282                 lockout_duration *= 60;
 283
 284                 bad_password_time = pdb_get_bad_password_time(sampass);
 285                 if (bad_password_time == (time_t) 0) {
 286                         DEBUG(2, ("pdb_try_account_unlock: Account %s "
 287                                   "administratively locked out "
 288                                   "with no bad password "
 289                                   "time. Leaving locked out.\n",
 290                                   pdb_get_username(sampass)));
 291                         return true;
 292                 }
 293
 294                 if ((bad_password_time +
 295                      convert_uint32_t_to_time_t(lockout_duration)) < now) {
 296                         NTSTATUS status;
 297
 298                         pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
 299                                           PDB_CHANGED);
 300                         pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
 301                         pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
 302
 303                         become_root();
 304                         status = pdb_update_sam_account(sampass);
 305                         unbecome_root();
 306                         if (!NT_STATUS_IS_OK(status)) {
 307                                 DEBUG(0, ("_samr_OpenUser: Couldn't "
 308                                           "update account %s - %s\n",
 309                                           pdb_get_username(sampass),
 310                                           nt_errstr(status)));
 311                                 return false;
 312                         }
 313                 }
 314         }
 315
 316         return true;
 317 }
 318
 319 /**
 320  * @brief Get a sam user structure by the given username.
 321  *
 322  * This functions also checks if the account has been automatically locked out
 323  * and unlocks it if a lockout duration time has been defined and the time has
 324  * elapsed.
 325  *
 326  * @param[in]  sam_acct  The sam user structure to fill.
 327  *
 328  * @param[in]  username  The username to look for.
 329  *
 330  * @return               True on success, false on error.
 331  */
 332 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
 333 {
 334         struct pdb_methods *pdb = pdb_get_methods();
 335         struct samu *for_cache;
 336         const struct dom_sid *user_sid;
 337         NTSTATUS status;
 338         bool ok;
 339
 340         status = pdb->getsampwnam(pdb, sam_acct, username);
 341         if (!NT_STATUS_IS_OK(status)) {
 342                 return false;
 343         }
 344
 345         ok = pdb_try_account_unlock(sam_acct);
 346         if (!ok) {
 347                 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
 348                           username));
 349         }
 350
 351         for_cache = samu_new(NULL);
 352         if (for_cache == NULL) {
 353                 return False;
 354         }
 355
 356         if (!pdb_copy_sam_account(for_cache, sam_acct)) {
 357                 TALLOC_FREE(for_cache);
 358                 return False;
 359         }
 360
 361         user_sid = pdb_get_user_sid(for_cache);
 362
 363         ok = memcache_add_talloc(NULL,
 364                                  PDB_GETPWSID_CACHE,
 365                                  data_blob_const(user_sid, sizeof(*user_sid)),
 366                                  &for_cache);
 367         if (!ok) {
 368                 TALLOC_FREE(for_cache);
 369         }
 370
 371         return True;
 372 }
 373
 374 /**********************************************************************
 375 **********************************************************************/
 376
 377 static bool guest_user_info( struct samu *user )
 378 {
 379         struct passwd *pwd;
 380         NTSTATUS result;
 381         const char *guestname = lp_guest_account();
 382
 383         pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
 384         if (pwd == NULL) {
 385                 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
 386                         guestname));
 387                 return False;
 388         }
 389
 390         result = samu_set_unix(user, pwd );
 391
 392         TALLOC_FREE( pwd );
 393
 394         return NT_STATUS_IS_OK( result );
 395 }
 396
 397 /**
 398  * @brief Get a sam user structure by the given username.
 399  *
 400  * This functions also checks if the account has been automatically locked out
 401  * and unlocks it if a lockout duration time has been defined and the time has
 402  * elapsed.
 403  *
 404  *
 405  * @param[in]  sam_acct  The sam user structure to fill.
 406  *
 407  * @param[in]  sid       The user SDI to look up.
 408  *
 409  * @return               True on success, false on error.
 410  */
 411 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
 412 {
 413         struct pdb_methods *pdb = pdb_get_methods();
 414         uint32_t rid;
 415         void *cache_data;
 416         bool ok = false;
 417
 418         /* hard code the Guest RID of 501 */
 419
 420         if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
 421                 return False;
 422
 423         if ( rid == DOMAIN_RID_GUEST ) {
 424                 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
 425                 return guest_user_info( sam_acct );
 426         }
 427
 428         /* check the cache first */
 429
 430         cache_data = memcache_lookup_talloc(
 431                 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
 432
 433         if (cache_data != NULL) {
 434                 struct samu *cache_copy = talloc_get_type_abort(
 435                         cache_data, struct samu);
 436
 437                 ok = pdb_copy_sam_account(sam_acct, cache_copy);
 438         } else {
 439                 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
 440         }
 441
 442         if (!ok) {
 443                 return false;
 444         }
 445
 446         ok = pdb_try_account_unlock(sam_acct);
 447         if (!ok) {
 448                 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
 449                           sam_acct->username));
 450         }
 451
 452         return true;
 453 }
 454
 455 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
 456                                         TALLOC_CTX *tmp_ctx, const char *name,
 457                                         uint32_t acb_info, uint32_t *rid)
 458 {
 459         const struct loadparm_substitution *lp_sub =
 460                 loadparm_s3_global_substitution();
 461         struct samu *sam_pass;
 462         NTSTATUS status;
 463         struct passwd *pwd;
 464
 465         if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
 466                 return NT_STATUS_NO_MEMORY;
 467         }
 468
 469         if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
 470                 char *add_script = NULL;
 471                 int add_ret;
 472                 fstring name2;
 473
 474                 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
 475                         add_script = lp_add_user_script(tmp_ctx, lp_sub);
 476                 } else {
 477                         add_script = lp_add_machine_script(tmp_ctx, lp_sub);
 478                 }
 479
 480                 if (!add_script || add_script[0] == '\0') {
 481                         DEBUG(3, ("Could not find user %s and no add script "
 482                                   "defined\n", name));
 483                         return NT_STATUS_NO_SUCH_USER;
 484                 }
 485
 486                 /* lowercase the username before creating the Unix account for
 487                    compatibility with previous Samba releases */
 488                 fstrcpy( name2, name );
 489                 if (!strlower_m( name2 )) {
 490                         return NT_STATUS_INVALID_PARAMETER;
 491                 }
 492                 add_script = talloc_all_string_sub(tmp_ctx,
 493                                         add_script,
 494                                         "%u",
 495                                         name2);
 496                 if (!add_script) {
 497                         return NT_STATUS_NO_MEMORY;
 498                 }
 499                 add_ret = smbrun(add_script, NULL, NULL);
 500                 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
 501                                         add_script, add_ret));
 502                 if (add_ret == 0) {
 503                         smb_nscd_flush_user_cache();
 504                 }
 505
 506                 flush_pwnam_cache();
 507
 508                 pwd = Get_Pwnam_alloc(tmp_ctx, name);
 509
 510                 if(pwd == NULL) {
 511                         DEBUG(3, ("Could not find user %s, add script did not work\n", name));
 512                         return NT_STATUS_NO_SUCH_USER;
 513                 }
 514         }
 515
 516         /* we have a valid SID coming out of this call */
 517
 518         status = samu_alloc_rid_unix(methods, sam_pass, pwd);
 519
 520         TALLOC_FREE( pwd );
 521
 522         if (!NT_STATUS_IS_OK(status)) {
 523                 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
 524                 return status;
 525         }
 526
 527         if (!sid_peek_check_rid(get_global_sam_sid(),
 528                                 pdb_get_user_sid(sam_pass), rid)) {
 529                 DEBUG(0, ("Could not get RID of fresh user\n"));
 530                 return NT_STATUS_INTERNAL_ERROR;
 531         }
 532
 533         /* Use the username case specified in the original request */
 534
 535         pdb_set_username( sam_pass, name, PDB_SET );
 536
 537         /* Disable the account on creation, it does not have a reasonable password yet. */
 538
 539         acb_info |= ACB_DISABLED;
 540
 541         pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
 542
 543         status = methods->add_sam_account(methods, sam_pass);
 544
 545         TALLOC_FREE(sam_pass);
 546
 547         return status;
 548 }
 549
 550 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
 551                          uint32_t *rid)
 552 {
 553         struct pdb_methods *pdb = pdb_get_methods();
 554         return pdb->create_user(pdb, mem_ctx, name, flags, rid);
 555 }
 556
 557 /****************************************************************************
 558  Delete a UNIX user on demand.
 559 ****************************************************************************/
 560
 561 static int smb_delete_user(const char *unix_user)
 562 {
 563         const struct loadparm_substitution *lp_sub =
 564                 loadparm_s3_global_substitution();
 565         char *del_script = NULL;
 566         int ret;
 567
 568         /* safety check */
 569
 570         if ( strequal( unix_user, "root" ) ) {
 571                 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
 572                 return -1;
 573         }
 574
 575         del_script = lp_delete_user_script(talloc_tos(), lp_sub);
 576         if (!del_script || !*del_script) {
 577                 return -1;
 578         }
 579         del_script = talloc_all_string_sub(talloc_tos(),
 580                                 del_script,
 581                                 "%u",
 582                                 unix_user);
 583         if (!del_script) {
 584                 return -1;
 585         }
 586         ret = smbrun(del_script, NULL, NULL);
 587         flush_pwnam_cache();
 588         if (ret == 0) {
 589                 smb_nscd_flush_user_cache();
 590         }
 591         DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
 592
 593         return ret;
 594 }
 595
 596 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
 597                                         TALLOC_CTX *mem_ctx,
 598                                         struct samu *sam_acct)
 599 {
 600         NTSTATUS status;
 601         fstring username;
 602
 603         status = methods->delete_sam_account(methods, sam_acct);
 604         if (!NT_STATUS_IS_OK(status)) {
 605                 return status;
 606         }
 607
 608         /*
 609          * Now delete the unix side ....
 610          * note: we don't check if the delete really happened as the script is
 611          * not necessary present and maybe the sysadmin doesn't want to delete
 612          * the unix side
 613          */
 614
 615         /* always lower case the username before handing it off to
 616            external scripts */
 617
 618         fstrcpy( username, pdb_get_username(sam_acct) );
 619         if (!strlower_m( username )) {
 620                 return status;
 621         }
 622
 623         smb_delete_user( username );
 624
 625         return status;
 626 }
 627
 628 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
 629 {
 630         struct pdb_methods *pdb = pdb_get_methods();
 631         uid_t uid = -1;
 632         NTSTATUS status;
 633         const struct dom_sid *user_sid;
 634         char *msg_data;
 635
 636         user_sid = pdb_get_user_sid(sam_acct);
 637
 638         /* sanity check to make sure we don't delete root */
 639
 640         if ( !sid_to_uid(user_sid, &uid ) ) {
 641                 return NT_STATUS_NO_SUCH_USER;
 642         }
 643
 644         if ( uid == 0 ) {
 645                 return NT_STATUS_ACCESS_DENIED;
 646         }
 647
 648         memcache_delete(NULL,
 649                         PDB_GETPWSID_CACHE,
 650                         data_blob_const(user_sid, sizeof(*user_sid)));
 651
 652         status = pdb->delete_user(pdb, mem_ctx, sam_acct);
 653         if (!NT_STATUS_IS_OK(status)) {
 654                 return status;
 655         }
 656
 657         msg_data = talloc_asprintf(mem_ctx, "USER %s",
 658                                    pdb_get_username(sam_acct));
 659         if (!msg_data) {
 660                 /* not fatal, and too late to rollback,
 661                  * just return */
 662                 return status;
 663         }
 664         messaging_send_all(global_messaging_context(),
 665                            ID_CACHE_DELETE,
 666                            msg_data,
 667                            strlen(msg_data) + 1);
 668
 669         TALLOC_FREE(msg_data);
 670         return status;
 671 }
 672
 673 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
 674 {
 675         struct pdb_methods *pdb = pdb_get_methods();
 676         return pdb->add_sam_account(pdb, sam_acct);
 677 }
 678
 679 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
 680 {
 681         struct pdb_methods *pdb = pdb_get_methods();
 682
 683         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 684
 685         return pdb->update_sam_account(pdb, sam_acct);
 686 }
 687
 688 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
 689 {
 690         struct pdb_methods *pdb = pdb_get_methods();
 691         const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
 692
 693         memcache_delete(NULL,
 694                         PDB_GETPWSID_CACHE,
 695                         data_blob_const(user_sid, sizeof(*user_sid)));
 696
 697         return pdb->delete_sam_account(pdb, sam_acct);
 698 }
 699
 700 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
 701 {
 702         struct pdb_methods *pdb = pdb_get_methods();
 703         uid_t uid;
 704         NTSTATUS status;
 705
 706         memcache_flush(NULL, PDB_GETPWSID_CACHE);
 707
 708         /* sanity check to make sure we don't rename root */
 709
 710         if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
 711                 return NT_STATUS_NO_SUCH_USER;
 712         }
 713
 714         if ( uid == 0 ) {
 715                 return NT_STATUS_ACCESS_DENIED;
 716         }
 717
 718         status = pdb->rename_sam_account(pdb, oldname, newname);
 719
 720         /* always flush the cache here just to be safe */
 721         flush_pwnam_cache();
 722
 723         return status;
 724 }
 725
 726 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
 727 {
 728         struct pdb_methods *pdb = pdb_get_methods();
 729         return pdb->update_login_attempts(pdb, sam_acct, success);
 730 }
 731
 732 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
 733 {
 734         struct pdb_methods *pdb = pdb_get_methods();
 735         return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
 736 }
 737
 738 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
 739 {
 740         struct pdb_methods *pdb = pdb_get_methods();
 741         return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
 742 }
 743
 744 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
 745 {
 746         struct pdb_methods *pdb = pdb_get_methods();
 747         return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
 748 }
 749
 750 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
 751                                              TALLOC_CTX *mem_ctx,
 752                                              const char *name,
 753                                              uint32_t *rid)
 754 {
 755         struct dom_sid group_sid;
 756         struct group *grp;
 757         struct dom_sid_buf tmp;
 758
 759         grp = getgrnam(name);
 760
 761         if (grp == NULL) {
 762                 gid_t gid;
 763
 764                 if (smb_create_group(name, &gid) != 0) {
 765                         return NT_STATUS_ACCESS_DENIED;
 766                 }
 767
 768                 grp = getgrgid(gid);
 769         }
 770
 771         if (grp == NULL) {
 772                 return NT_STATUS_ACCESS_DENIED;
 773         }
 774
 775         if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
 776                 if (!pdb_new_rid(rid)) {
 777                         return NT_STATUS_ACCESS_DENIED;
 778                 }
 779         } else {
 780                 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
 781         }
 782
 783         sid_compose(&group_sid, get_global_sam_sid(), *rid);
 784
 785         return add_initial_entry(
 786                 grp->gr_gid,
 787                 dom_sid_str_buf(&group_sid, &tmp),
 788                 SID_NAME_DOM_GRP,
 789                 name,
 790                 NULL);
 791 }
 792
 793 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
 794                               uint32_t *rid)
 795 {
 796         struct pdb_methods *pdb = pdb_get_methods();
 797         return pdb->create_dom_group(pdb, mem_ctx, name, rid);
 798 }
 799
 800 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
 801                                              TALLOC_CTX *mem_ctx,
 802                                              uint32_t rid)
 803 {
 804         struct dom_sid group_sid;
 805         GROUP_MAP *map;
 806         NTSTATUS status;
 807         struct group *grp;
 808         const char *grp_name;
 809
 810         map = talloc_zero(mem_ctx, GROUP_MAP);
 811         if (!map) {
 812                 return NT_STATUS_NO_MEMORY;
 813         }
 814
 815         /* coverity */
 816         map->gid = (gid_t) -1;
 817
 818         sid_compose(&group_sid, get_global_sam_sid(), rid);
 819
 820         if (!get_domain_group_from_sid(group_sid, map)) {
 821                 DEBUG(10, ("Could not find group for rid %d\n", rid));
 822                 return NT_STATUS_NO_SUCH_GROUP;
 823         }
 824
 825         /* We need the group name for the smb_delete_group later on */
 826
 827         if (map->gid == (gid_t)-1) {
 828                 return NT_STATUS_NO_SUCH_GROUP;
 829         }
 830
 831         grp = getgrgid(map->gid);
 832         if (grp == NULL) {
 833                 return NT_STATUS_NO_SUCH_GROUP;
 834         }
 835
 836         TALLOC_FREE(map);
 837
 838         /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
 839
 840         grp_name = talloc_strdup(mem_ctx, grp->gr_name);
 841         if (grp_name == NULL) {
 842                 return NT_STATUS_NO_MEMORY;
 843         }
 844
 845         status = pdb_delete_group_mapping_entry(group_sid);
 846
 847         if (!NT_STATUS_IS_OK(status)) {
 848                 return status;
 849         }
 850
 851         /* Don't check the result of smb_delete_group */
 852
 853         smb_delete_group(grp_name);
 854
 855         return NT_STATUS_OK;
 856 }
 857
 858 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
 859 {
 860         struct pdb_methods *pdb = pdb_get_methods();
 861         return pdb->delete_dom_group(pdb, mem_ctx, rid);
 862 }
 863
 864 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
 865 {
 866         struct pdb_methods *pdb = pdb_get_methods();
 867         return pdb->add_group_mapping_entry(pdb, map);
 868 }
 869
 870 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
 871 {
 872         struct pdb_methods *pdb = pdb_get_methods();
 873         return pdb->update_group_mapping_entry(pdb, map);
 874 }
 875
 876 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
 877 {
 878         struct pdb_methods *pdb = pdb_get_methods();
 879         return pdb->delete_group_mapping_entry(pdb, sid);
 880 }
 881
 882 bool pdb_enum_group_mapping(const struct dom_sid *sid,
 883                             enum lsa_SidType sid_name_use,
 884                             GROUP_MAP ***pp_rmap,
 885                             size_t *p_num_entries,
 886                             bool unix_only)
 887 {
 888         struct pdb_methods *pdb = pdb_get_methods();
 889         return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
 890                 pp_rmap, p_num_entries, unix_only));
 891 }
 892
 893 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
 894                                 const struct dom_sid *sid,
 895                                 uint32_t **pp_member_rids,
 896                                 size_t *p_num_members)
 897 {
 898         struct pdb_methods *pdb = pdb_get_methods();
 899         NTSTATUS result;
 900
 901         result = pdb->enum_group_members(pdb, mem_ctx,
 902                         sid, pp_member_rids, p_num_members);
 903
 904         /* special check for rid 513 */
 905
 906         if ( !NT_STATUS_IS_OK( result ) ) {
 907                 uint32_t rid;
 908
 909                 sid_peek_rid( sid, &rid );
 910
 911                 if ( rid == DOMAIN_RID_USERS ) {
 912                         *p_num_members = 0;
 913                         *pp_member_rids = NULL;
 914
 915                         return NT_STATUS_OK;
 916                 }
 917         }
 918
 919         return result;
 920 }
 921
 922 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
 923                                     struct dom_sid **pp_sids, gid_t **pp_gids,
 924                                     uint32_t *p_num_groups)
 925 {
 926         struct pdb_methods *pdb = pdb_get_methods();
 927         return pdb->enum_group_memberships(
 928                 pdb, mem_ctx, user,
 929                 pp_sids, pp_gids, p_num_groups);
 930 }
 931
 932 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
 933                                                    TALLOC_CTX *mem_ctx,
 934                                                    struct samu *sampass)
 935 {
 936         struct group *grp;
 937         gid_t gid;
 938
 939         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
 940             (grp = getgrgid(gid)) == NULL) {
 941                 return NT_STATUS_INVALID_PRIMARY_GROUP;
 942         }
 943
 944         if (smb_set_primary_group(grp->gr_name,
 945                                   pdb_get_username(sampass)) != 0) {
 946                 return NT_STATUS_ACCESS_DENIED;
 947         }
 948
 949         return NT_STATUS_OK;
 950 }
 951
 952 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
 953 {
 954         struct pdb_methods *pdb = pdb_get_methods();
 955         return pdb->set_unix_primary_group(pdb, mem_ctx, user);
 956 }
 957
 958 /*
 959  * Helper function to see whether a user is in a group. We can't use
 960  * user_in_group_sid here because this creates dependencies only smbd can
 961  * fulfil.
 962  */
 963
 964 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
 965                               const struct dom_sid *group_sid)
 966 {
 967         struct dom_sid *sids;
 968         gid_t *gids;
 969         uint32_t i, num_groups;
 970
 971         if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
 972                                                         &sids, &gids,
 973                                                         &num_groups))) {
 974                 return False;
 975         }
 976
 977         for (i=0; i<num_groups; i++) {
 978                 if (dom_sid_equal(group_sid, &sids[i])) {
 979                         return True;
 980                 }
 981         }
 982         return False;
 983 }
 984
 985 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
 986                                          TALLOC_CTX *mem_ctx,
 987                                          uint32_t group_rid,
 988                                          uint32_t member_rid)
 989 {
 990         struct dom_sid group_sid, member_sid;
 991         struct samu *account = NULL;
 992         GROUP_MAP *map;
 993         struct group *grp;
 994         struct passwd *pwd;
 995         const char *group_name;
 996         uid_t uid;
 997
 998         map = talloc_zero(mem_ctx, GROUP_MAP);
 999         if (!map) {
1000                 return NT_STATUS_NO_MEMORY;
1001         }
1002
1003         /* coverity */
1004         map->gid = (gid_t) -1;
1005
1006         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1007         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1008
1009         if (!get_domain_group_from_sid(group_sid, map) ||
1010             (map->gid == (gid_t)-1) ||
1011             ((grp = getgrgid(map->gid)) == NULL)) {
1012                 return NT_STATUS_NO_SUCH_GROUP;
1013         }
1014
1015         TALLOC_FREE(map);
1016
1017         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1018         if (group_name == NULL) {
1019                 return NT_STATUS_NO_MEMORY;
1020         }
1021
1022         if ( !(account = samu_new( NULL )) ) {
1023                 return NT_STATUS_NO_MEMORY;
1024         }
1025
1026         if (!pdb_getsampwsid(account, &member_sid) ||
1027             !sid_to_uid(&member_sid, &uid) ||
1028             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1029                 return NT_STATUS_NO_SUCH_USER;
1030         }
1031
1032         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1033                 return NT_STATUS_MEMBER_IN_GROUP;
1034         }
1035
1036         /*
1037          * ok, the group exist, the user exist, the user is not in the group,
1038          * we can (finally) add it to the group !
1039          */
1040
1041         smb_add_user_group(group_name, pwd->pw_name);
1042
1043         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1044                 return NT_STATUS_ACCESS_DENIED;
1045         }
1046
1047         return NT_STATUS_OK;
1048 }
1049
1050 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1051                           uint32_t member_rid)
1052 {
1053         struct pdb_methods *pdb = pdb_get_methods();
1054         return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1055 }
1056
1057 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1058                                          TALLOC_CTX *mem_ctx,
1059                                          uint32_t group_rid,
1060                                          uint32_t member_rid)
1061 {
1062         struct dom_sid group_sid, member_sid;
1063         struct samu *account = NULL;
1064         GROUP_MAP *map;
1065         struct group *grp;
1066         struct passwd *pwd;
1067         const char *group_name;
1068         uid_t uid;
1069
1070         map = talloc_zero(mem_ctx, GROUP_MAP);
1071         if (!map) {
1072                 return NT_STATUS_NO_MEMORY;
1073         }
1074
1075         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1076         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1077
1078         if (!get_domain_group_from_sid(group_sid, map) ||
1079             (map->gid == (gid_t)-1) ||
1080             ((grp = getgrgid(map->gid)) == NULL)) {
1081                 return NT_STATUS_NO_SUCH_GROUP;
1082         }
1083
1084         TALLOC_FREE(map);
1085
1086         group_name = talloc_strdup(mem_ctx, grp->gr_name);
1087         if (group_name == NULL) {
1088                 return NT_STATUS_NO_MEMORY;
1089         }
1090
1091         if ( !(account = samu_new( NULL )) ) {
1092                 return NT_STATUS_NO_MEMORY;
1093         }
1094
1095         if (!pdb_getsampwsid(account, &member_sid) ||
1096             !sid_to_uid(&member_sid, &uid) ||
1097             ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1098                 return NT_STATUS_NO_SUCH_USER;
1099         }
1100
1101         if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1102                 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1103         }
1104
1105         /*
1106          * ok, the group exist, the user exist, the user is in the group,
1107          * we can (finally) delete it from the group!
1108          */
1109
1110         smb_delete_user_group(group_name, pwd->pw_name);
1111
1112         if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1113                 return NT_STATUS_ACCESS_DENIED;
1114         }
1115
1116         return NT_STATUS_OK;
1117 }
1118
1119 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1120                           uint32_t member_rid)
1121 {
1122         struct pdb_methods *pdb = pdb_get_methods();
1123         return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1124 }
1125
1126 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1127 {
1128         struct pdb_methods *pdb = pdb_get_methods();
1129         return pdb->create_alias(pdb, name, rid);
1130 }
1131
1132 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1133 {
1134         struct pdb_methods *pdb = pdb_get_methods();
1135         return pdb->delete_alias(pdb, sid);
1136 }
1137
1138 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1139 {
1140         struct pdb_methods *pdb = pdb_get_methods();
1141         return pdb->get_aliasinfo(pdb, sid, info);
1142 }
1143
1144 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1145 {
1146         struct pdb_methods *pdb = pdb_get_methods();
1147         return pdb->set_aliasinfo(pdb, sid, info);
1148 }
1149
1150 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1151 {
1152         struct pdb_methods *pdb = pdb_get_methods();
1153         return pdb->add_aliasmem(pdb, alias, member);
1154 }
1155
1156 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1157 {
1158         struct pdb_methods *pdb = pdb_get_methods();
1159         return pdb->del_aliasmem(pdb, alias, member);
1160 }
1161
1162 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1163                            struct dom_sid **pp_members, size_t *p_num_members)
1164 {
1165         struct pdb_methods *pdb = pdb_get_methods();
1166         return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1167                                   p_num_members);
1168 }
1169
1170 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1171                                     const struct dom_sid *domain_sid,
1172                                     const struct dom_sid *members, size_t num_members,
1173                                     uint32_t **pp_alias_rids,
1174                                     size_t *p_num_alias_rids)
1175 {
1176         struct pdb_methods *pdb = pdb_get_methods();
1177         return pdb->enum_alias_memberships(pdb, mem_ctx,
1178                                                        domain_sid,
1179                                                        members, num_members,
1180                                                        pp_alias_rids,
1181                                                        p_num_alias_rids);
1182 }
1183
1184 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1185                          int num_rids,
1186                          uint32_t *rids,
1187                          const char **names,
1188                          enum lsa_SidType *attrs)
1189 {
1190         struct pdb_methods *pdb = pdb_get_methods();
1191         return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1192 }
1193
1194 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1195 {
1196         struct pdb_methods *pdb = pdb_get_methods();
1197         NTSTATUS status;
1198
1199         become_root();
1200         status = pdb->get_account_policy(pdb, type, value);
1201         unbecome_root();
1202
1203         return NT_STATUS_IS_OK(status);
1204 }
1205
1206 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1207 {
1208         struct pdb_methods *pdb = pdb_get_methods();
1209         NTSTATUS status;
1210
1211         become_root();
1212         status = pdb->set_account_policy(pdb, type, value);
1213         unbecome_root();
1214
1215         return NT_STATUS_IS_OK(status);
1216 }
1217
1218 bool pdb_get_seq_num(time_t *seq_num)
1219 {
1220         struct pdb_methods *pdb = pdb_get_methods();
1221         return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1222 }
1223
1224 /*
1225  * Instead of passing down a gid or uid, this function sends down a pointer
1226  * to a unixid.
1227  *
1228  * This acts as an in-out variable so that the idmap functions can correctly
1229  * receive ID_TYPE_BOTH, filling in cache details correctly rather than forcing
1230  * the cache to store ID_TYPE_UID or ID_TYPE_GID.
1231  */
1232 bool pdb_id_to_sid(struct unixid *id, struct dom_sid *sid)
1233 {
1234         struct pdb_methods *pdb = pdb_get_methods();
1235         bool ret;
1236
1237         ret = pdb->id_to_sid(pdb, id, sid);
1238
1239         if (ret) {
1240                 idmap_cache_set_sid2unixid(sid, id);
1241         }
1242
1243         return ret;
1244 }
1245
1246 bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id)
1247 {
1248         struct pdb_methods *pdb = pdb_get_methods();
1249         bool ret;
1250
1251         /* only ask the backend if it is responsible */
1252         if (!sid_check_object_is_for_passdb(sid)) {
1253                 return false;
1254         }
1255
1256         ret = pdb->sid_to_id(pdb, sid, id);
1257
1258         if (ret) {
1259                 idmap_cache_set_sid2unixid(sid, id);
1260         }
1261
1262         return ret;
1263 }
1264
1265 uint32_t pdb_capabilities(void)
1266 {
1267         struct pdb_methods *pdb = pdb_get_methods();
1268         return pdb->capabilities(pdb);
1269 }
1270
1271 /********************************************************************
1272  Allocate a new RID from the passdb backend.  Verify that it is free
1273  by calling lookup_global_sam_rid() to verify that the RID is not
1274  in use.  This handles servers that have existing users or groups
1275  with add RIDs (assigned from previous algorithmic mappings)
1276 ********************************************************************/
1277
1278 bool pdb_new_rid(uint32_t *rid)
1279 {
1280         struct pdb_methods *pdb = pdb_get_methods();
1281         const char *name = NULL;
1282         enum lsa_SidType type;
1283         uint32_t allocated_rid = 0;
1284         int i;
1285         TALLOC_CTX *ctx;
1286
1287         if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1288                 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1289                           "are active\n"));
1290                 return False;
1291         }
1292
1293         if (algorithmic_rid_base() != BASE_RID) {
1294                 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1295                           "without algorithmic RIDs is chosen.\n"));
1296                 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1297                              "add', set the maximum used RID\n"));
1298                 DEBUGADD(0, ("and remove the parameter\n"));
1299                 return False;
1300         }
1301
1302         if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1303                 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1304                 return False;
1305         }
1306
1307         /* Attempt to get an unused RID (max tires is 250...yes that it is
1308            and arbitrary number I pulkled out of my head).   -- jerry */
1309
1310         for ( i=0; allocated_rid==0 && i<250; i++ ) {
1311                 /* get a new RID */
1312
1313                 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1314                         return False;
1315                 }
1316
1317                 /* validate that the RID is not in use */
1318
1319                 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1320                         allocated_rid = 0;
1321                 }
1322         }
1323
1324         TALLOC_FREE( ctx );
1325
1326         if ( allocated_rid == 0 ) {
1327                 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1328                 return False;
1329         }
1330
1331         *rid = allocated_rid;
1332
1333         return True;
1334 }
1335
1336 /***************************************************************
1337   Initialize the static context (at smbd startup etc).
1338
1339   If uninitialised, context will auto-init on first use.
1340  ***************************************************************/
1341
1342 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1343 {
1344         if (tevent_ctx) {
1345                 pdb_tevent_ctx = tevent_ctx;
1346         }
1347         return (pdb_get_methods_reload(reload) != NULL);
1348 }
1349
1350 /***************************************************************************
1351   Default implementations of some functions.
1352  ****************************************************************************/
1353
1354 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1355 {
1356         return NT_STATUS_NO_SUCH_USER;
1357 }
1358
1359 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1360 {
1361         return NT_STATUS_NO_SUCH_USER;
1362 }
1363
1364 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1365 {
1366         return NT_STATUS_NOT_IMPLEMENTED;
1367 }
1368
1369 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1370 {
1371         return NT_STATUS_NOT_IMPLEMENTED;
1372 }
1373
1374 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1375 {
1376         return NT_STATUS_NOT_IMPLEMENTED;
1377 }
1378
1379 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1380 {
1381         return NT_STATUS_NOT_IMPLEMENTED;
1382 }
1383
1384 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1385 {
1386         /* Only the pdb_nds backend implements this, by
1387          * default just return ok. */
1388         return NT_STATUS_OK;
1389 }
1390
1391 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1392 {
1393         return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1394 }
1395
1396 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1397 {
1398         return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1399 }
1400
1401 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1402 {
1403         *seq_num = time(NULL);
1404         return NT_STATUS_OK;
1405 }
1406
1407 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1408                                    struct dom_sid *sid)
1409 {
1410         struct samu *sampw = NULL;
1411         struct passwd *unix_pw;
1412         fstring pw_name = { 0 };
1413         bool ret;
1414
1415         unix_pw = getpwuid( uid );
1416
1417         if ( !unix_pw ) {
1418                 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1419                          "%lu\n", (unsigned long)uid));
1420                 return False;
1421         }
1422
1423         if (unix_pw->pw_name == NULL) {
1424                 DBG_DEBUG("No pw_name for uid %d\n", (int)uid);
1425                 return false;
1426         }
1427
1428         /*
1429          * Make a copy, "unix_pw" might go away soon.
1430          */
1431         fstrcpy(pw_name, unix_pw->pw_name);
1432
1433         if ( !(sampw = samu_new( NULL )) ) {
1434                 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1435                 return False;
1436         }
1437
1438         become_root();
1439         ret = NT_STATUS_IS_OK(methods->getsampwnam(methods, sampw, pw_name));
1440         unbecome_root();
1441
1442         if (!ret) {
1443                 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1444                           "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1445                 TALLOC_FREE(sampw);
1446                 return False;
1447         }
1448
1449         sid_copy(sid, pdb_get_user_sid(sampw));
1450
1451         TALLOC_FREE(sampw);
1452
1453         return True;
1454 }
1455
1456 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1457                                    struct dom_sid *sid)
1458 {
1459         GROUP_MAP *map;
1460
1461         map = talloc_zero(NULL, GROUP_MAP);
1462         if (!map) {
1463                 return false;
1464         }
1465
1466         if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1467                 TALLOC_FREE(map);
1468                 return false;
1469         }
1470
1471         sid_copy(sid, &map->sid);
1472         TALLOC_FREE(map);
1473         return true;
1474 }
1475
1476 static bool pdb_default_id_to_sid(struct pdb_methods *methods, struct unixid *id,
1477                                    struct dom_sid *sid)
1478 {
1479         switch (id->type) {
1480         case ID_TYPE_UID:
1481                 return pdb_default_uid_to_sid(methods, id->id, sid);
1482
1483         case ID_TYPE_GID:
1484                 return pdb_default_gid_to_sid(methods, id->id, sid);
1485
1486         default:
1487                 return false;
1488         }
1489 }
1490 /**
1491  * The "Unix User" and "Unix Group" domains have a special
1492  * id mapping that is a rid-algorithm with range starting at 0.
1493  */
1494 bool pdb_sid_to_id_unix_users_and_groups(const struct dom_sid *sid,
1495                                          struct unixid *id)
1496 {
1497         uint32_t rid;
1498
1499         id->id = -1;
1500
1501         if (sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid)) {
1502                 id->id = rid;
1503                 id->type = ID_TYPE_UID;
1504                 return true;
1505         }
1506
1507         if (sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid)) {
1508                 id->id = rid;
1509                 id->type = ID_TYPE_GID;
1510                 return true;
1511         }
1512
1513         return false;
1514 }
1515
1516 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1517                                   const struct dom_sid *sid,
1518                                   struct unixid *id)
1519 {
1520         TALLOC_CTX *mem_ctx;
1521         bool ret = False;
1522         uint32_t rid;
1523         struct dom_sid_buf buf;
1524
1525         id->id = -1;
1526
1527         mem_ctx = talloc_new(NULL);
1528
1529         if (mem_ctx == NULL) {
1530                 DEBUG(0, ("talloc_new failed\n"));
1531                 return False;
1532         }
1533
1534         if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1535                 const char *name;
1536                 enum lsa_SidType type;
1537                 uid_t uid = (uid_t)-1;
1538                 gid_t gid = (gid_t)-1;
1539                 /* Here we might have users as well as groups and aliases */
1540                 ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid);
1541                 if (ret) {
1542                         switch (type) {
1543                         case SID_NAME_DOM_GRP:
1544                         case SID_NAME_ALIAS:
1545                                 id->type = ID_TYPE_GID;
1546                                 id->id = gid;
1547                                 break;
1548                         case SID_NAME_USER:
1549                                 id->type = ID_TYPE_UID;
1550                                 id->id = uid;
1551                                 break;
1552                         default:
1553                                 DEBUG(5, ("SID %s belongs to our domain, and "
1554                                           "an object exists in the database, "
1555                                            "but it is neither a user nor a "
1556                                            "group (got type %d).\n",
1557                                           dom_sid_str_buf(sid, &buf),
1558                                           type));
1559                                 ret = false;
1560                         }
1561                 } else {
1562                         DEBUG(5, ("SID %s belongs to our domain, but there is "
1563                                   "no corresponding object in the database.\n",
1564                                   dom_sid_str_buf(sid, &buf)));
1565                 }
1566                 goto done;
1567         }
1568
1569         /*
1570          * "Unix User" and "Unix Group"
1571          */
1572         ret = pdb_sid_to_id_unix_users_and_groups(sid, id);
1573         if (ret) {
1574                 goto done;
1575         }
1576
1577         /* BUILTIN */
1578
1579         if (sid_check_is_in_builtin(sid) ||
1580             sid_check_is_in_wellknown_domain(sid)) {
1581                 /* Here we only have aliases */
1582                 GROUP_MAP *map;
1583
1584                 map = talloc_zero(mem_ctx, GROUP_MAP);
1585                 if (!map) {
1586                         ret = false;
1587                         goto done;
1588                 }
1589
1590                 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1591                         DEBUG(10, ("Could not find map for sid %s\n",
1592                                    dom_sid_str_buf(sid, &buf)));
1593                         goto done;
1594                 }
1595                 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1596                     (map->sid_name_use != SID_NAME_WKN_GRP)) {
1597                         DEBUG(10, ("Map for sid %s is a %s, expected an "
1598                                    "alias\n",
1599                                    dom_sid_str_buf(sid, &buf),
1600                                    sid_type_lookup(map->sid_name_use)));
1601                         goto done;
1602                 }
1603
1604                 id->id = map->gid;
1605                 id->type = ID_TYPE_GID;
1606                 ret = True;
1607                 goto done;
1608         }
1609
1610         DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1611                   dom_sid_str_buf(sid, &buf)));
1612
1613  done:
1614
1615         TALLOC_FREE(mem_ctx);
1616         return ret;
1617 }
1618
1619 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1620 {
1621         struct group *grp;
1622         char **gr;
1623         struct passwd *pwd;
1624         bool winbind_env;
1625         bool ret = False;
1626
1627         *pp_uids = NULL;
1628         *p_num = 0;
1629
1630         /* We only look at our own sam, so don't care about imported stuff */
1631         winbind_env = winbind_env_set();
1632         (void)winbind_off();
1633
1634         if ((grp = getgrgid(gid)) == NULL) {
1635                 /* allow winbindd lookups, but only if they weren't already disabled */
1636                 goto done;
1637         }
1638
1639         /* Primary group members */
1640         setpwent();
1641         while ((pwd = getpwent()) != NULL) {
1642                 if (pwd->pw_gid == gid) {
1643                         if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1644                                                 pp_uids, p_num)) {
1645                                 goto done;
1646                         }
1647                 }
1648         }
1649         endpwent();
1650
1651         /* Secondary group members */
1652         for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1653                 struct passwd *pw = getpwnam(*gr);
1654
1655                 if (pw == NULL)
1656                         continue;
1657                 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1658                         goto done;
1659                 }
1660         }
1661
1662         ret = True;
1663
1664   done:
1665
1666         /* allow winbindd lookups, but only if they weren't already disabled */
1667         if (!winbind_env) {
1668                 (void)winbind_on();
1669         }
1670
1671         return ret;
1672 }
1673
1674 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1675                                                TALLOC_CTX *mem_ctx,
1676                                                const struct dom_sid *group,
1677                                                uint32_t **pp_member_rids,
1678                                                size_t *p_num_members)
1679 {
1680         gid_t gid;
1681         uid_t *uids;
1682         uint32_t i, num_uids;
1683
1684         *pp_member_rids = NULL;
1685         *p_num_members = 0;
1686
1687         if (!sid_to_gid(group, &gid))
1688                 return NT_STATUS_NO_SUCH_GROUP;
1689
1690         if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1691                 return NT_STATUS_NO_SUCH_GROUP;
1692
1693         if (num_uids == 0)
1694                 return NT_STATUS_OK;
1695
1696         *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1697
1698         for (i=0; i<num_uids; i++) {
1699                 struct dom_sid sid;
1700
1701                 uid_to_sid(&sid, uids[i]);
1702
1703                 if (!sid_check_is_in_our_sam(&sid)) {
1704                         DEBUG(5, ("Inconsistent SAM -- group member uid not "
1705                                   "in our domain\n"));
1706                         continue;
1707                 }
1708
1709                 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1710                 *p_num_members += 1;
1711         }
1712
1713         return NT_STATUS_OK;
1714 }
1715
1716 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1717                                                    TALLOC_CTX *mem_ctx,
1718                                                    struct samu *user,
1719                                                    struct dom_sid **pp_sids,
1720                                                    gid_t **pp_gids,
1721                                                    uint32_t *p_num_groups)
1722 {
1723         size_t i;
1724         gid_t gid;
1725         struct passwd *pw;
1726         const char *username = pdb_get_username(user);
1727
1728
1729         /* Ignore the primary group SID.  Honor the real Unix primary group.
1730            The primary group SID is only of real use to Windows clients */
1731
1732         if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1733                 return NT_STATUS_NO_SUCH_USER;
1734         }
1735
1736         gid = pw->pw_gid;
1737
1738         TALLOC_FREE( pw );
1739
1740         if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1741                 return NT_STATUS_NO_SUCH_USER;
1742         }
1743
1744         if (*p_num_groups == 0) {
1745                 smb_panic("primary group missing");
1746         }
1747
1748         *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1749
1750         if (*pp_sids == NULL) {
1751                 TALLOC_FREE(*pp_gids);
1752                 return NT_STATUS_NO_MEMORY;
1753         }
1754
1755         for (i=0; i<*p_num_groups; i++) {
1756                 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1757         }
1758
1759         return NT_STATUS_OK;
1760 }
1761
1762 /*******************************************************************
1763  Look up a rid in the SAM we're responsible for (i.e. passdb)
1764  ********************************************************************/
1765
1766 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1767                                   const char **name,
1768                                   enum lsa_SidType *psid_name_use,
1769                                   uid_t *uid, gid_t *gid)
1770 {
1771         struct samu *sam_account = NULL;
1772         GROUP_MAP *map = NULL;
1773         bool ret;
1774         struct dom_sid sid;
1775
1776         *psid_name_use = SID_NAME_UNKNOWN;
1777
1778         DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1779                  (unsigned int)rid));
1780
1781         sid_compose(&sid, get_global_sam_sid(), rid);
1782
1783         /* see if the passdb can help us with the name of the user */
1784
1785         if ( !(sam_account = samu_new( NULL )) ) {
1786                 return False;
1787         }
1788
1789         map = talloc_zero(mem_ctx, GROUP_MAP);
1790         if (!map) {
1791                 return false;
1792         }
1793
1794         /* BEING ROOT BLOCK */
1795         become_root();
1796         ret = pdb_getsampwsid(sam_account, &sid);
1797         if (!ret) {
1798                 TALLOC_FREE(sam_account);
1799                 ret = pdb_getgrsid(map, sid);
1800         }
1801         unbecome_root();
1802         /* END BECOME_ROOT BLOCK */
1803
1804         if (sam_account || !ret) {
1805                 TALLOC_FREE(map);
1806         }
1807
1808         if (sam_account) {
1809                 struct passwd *pw;
1810
1811                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1812                 if (!*name) {
1813                         TALLOC_FREE(sam_account);
1814                         return False;
1815                 }
1816
1817                 *psid_name_use = SID_NAME_USER;
1818
1819                 TALLOC_FREE(sam_account);
1820
1821                 if (uid == NULL) {
1822                         return True;
1823                 }
1824
1825                 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1826                 if (pw == NULL) {
1827                         return False;
1828                 }
1829                 *uid = pw->pw_uid;
1830                 TALLOC_FREE(pw);
1831                 return True;
1832
1833         } else if (map && (map->gid != (gid_t)-1)) {
1834
1835                 /* do not resolve SIDs to a name unless there is a valid
1836                    gid associated with it */
1837
1838                 *name = talloc_steal(mem_ctx, map->nt_name);
1839                 *psid_name_use = map->sid_name_use;
1840
1841                 if (gid) {
1842                         *gid = map->gid;
1843                 }
1844
1845                 TALLOC_FREE(map);
1846                 return True;
1847         }
1848
1849         TALLOC_FREE(map);
1850
1851         /* Windows will always map RID 513 to something.  On a non-domain
1852            controller, this gets mapped to SERVER\None. */
1853
1854         if (uid || gid) {
1855                 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1856                 return False;
1857         }
1858
1859         if ( rid == DOMAIN_RID_USERS ) {
1860                 *name = talloc_strdup(mem_ctx, "None" );
1861                 *psid_name_use = SID_NAME_DOM_GRP;
1862
1863                 return True;
1864         }
1865
1866         return False;
1867 }
1868
1869 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1870                                         const struct dom_sid *domain_sid,
1871                                         int num_rids,
1872                                         uint32_t *rids,
1873                                         const char **names,
1874                                         enum lsa_SidType *attrs)
1875 {
1876         int i;
1877         NTSTATUS result;
1878         bool have_mapped = False;
1879         bool have_unmapped = False;
1880
1881         if (sid_check_is_builtin(domain_sid)) {
1882
1883                 for (i=0; i<num_rids; i++) {
1884                         const char *name;
1885
1886                         if (lookup_builtin_rid(names, rids[i], &name)) {
1887                                 attrs[i] = SID_NAME_ALIAS;
1888                                 names[i] = name;
1889                                 DEBUG(5,("lookup_rids: %s:%d\n",
1890                                          names[i], attrs[i]));
1891                                 have_mapped = True;
1892                         } else {
1893                                 have_unmapped = True;
1894                                 attrs[i] = SID_NAME_UNKNOWN;
1895                         }
1896                 }
1897                 goto done;
1898         }
1899
1900         /* Should not happen, but better check once too many */
1901         if (!sid_check_is_our_sam(domain_sid)) {
1902                 return NT_STATUS_INVALID_HANDLE;
1903         }
1904
1905         for (i = 0; i < num_rids; i++) {
1906                 const char *name;
1907
1908                 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1909                                           NULL, NULL)) {
1910                         if (name == NULL) {
1911                                 return NT_STATUS_NO_MEMORY;
1912                         }
1913                         names[i] = name;
1914                         DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1915                         have_mapped = True;
1916                 } else {
1917                         have_unmapped = True;
1918                         attrs[i] = SID_NAME_UNKNOWN;
1919                 }
1920         }
1921
1922  done:
1923
1924         result = NT_STATUS_NONE_MAPPED;
1925
1926         if (have_mapped)
1927                 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1928
1929         return result;
1930 }
1931
1932 static int pdb_search_destructor(struct pdb_search *search)
1933 {
1934         if ((!search->search_ended) && (search->search_end != NULL)) {
1935                 search->search_end(search);
1936         }
1937         return 0;
1938 }
1939
1940 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1941                                    enum pdb_search_type type)
1942 {
1943         struct pdb_search *result;
1944
1945         result = talloc(mem_ctx, struct pdb_search);
1946         if (result == NULL) {
1947                 DEBUG(0, ("talloc failed\n"));
1948                 return NULL;
1949         }
1950
1951         result->type = type;
1952         result->cache = NULL;
1953         result->num_entries = 0;
1954         result->cache_size = 0;
1955         result->search_ended = False;
1956         result->search_end = NULL;
1957
1958         /* Segfault appropriately if not initialized */
1959         result->next_entry = NULL;
1960         result->search_end = NULL;
1961
1962         talloc_set_destructor(result, pdb_search_destructor);
1963
1964         return result;
1965 }
1966
1967 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1968                               uint16_t acct_flags,
1969                               const char *account_name,
1970                               const char *fullname,
1971                               const char *description,
1972                               struct samr_displayentry *entry)
1973 {
1974         entry->rid = rid;
1975         entry->acct_flags = acct_flags;
1976
1977         if (account_name != NULL)
1978                 entry->account_name = talloc_strdup(mem_ctx, account_name);
1979         else
1980                 entry->account_name = "";
1981
1982         if (fullname != NULL)
1983                 entry->fullname = talloc_strdup(mem_ctx, fullname);
1984         else
1985                 entry->fullname = "";
1986
1987         if (description != NULL)
1988                 entry->description = talloc_strdup(mem_ctx, description);
1989         else
1990                 entry->description = "";
1991 }
1992
1993 struct group_search {
1994         GROUP_MAP **groups;
1995         size_t num_groups, current_group;
1996 };
1997
1998 static bool next_entry_groups(struct pdb_search *s,
1999                               struct samr_displayentry *entry)
2000 {
2001         struct group_search *state = (struct group_search *)s->private_data;
2002         uint32_t rid;
2003         GROUP_MAP *map;
2004
2005         if (state->current_group == state->num_groups)
2006                 return False;
2007
2008         map = state->groups[state->current_group];
2009
2010         sid_peek_rid(&map->sid, &rid);
2011
2012         fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
2013
2014         state->current_group += 1;
2015         return True;
2016 }
2017
2018 static void search_end_groups(struct pdb_search *search)
2019 {
2020         struct group_search *state =
2021                 (struct group_search *)search->private_data;
2022         TALLOC_FREE(state->groups);
2023 }
2024
2025 static bool pdb_search_grouptype(struct pdb_methods *methods,
2026                                  struct pdb_search *search,
2027                                  const struct dom_sid *sid, enum lsa_SidType type)
2028 {
2029         struct group_search *state;
2030
2031         state = talloc_zero(search, struct group_search);
2032         if (state == NULL) {
2033                 DEBUG(0, ("talloc failed\n"));
2034                 return False;
2035         }
2036
2037         if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2038                                                          &state->groups, &state->num_groups,
2039                                                          True))) {
2040                 DEBUG(0, ("Could not enum groups\n"));
2041                 return False;
2042         }
2043
2044         state->current_group = 0;
2045         search->private_data = state;
2046         search->next_entry = next_entry_groups;
2047         search->search_end = search_end_groups;
2048         return True;
2049 }
2050
2051 static bool pdb_default_search_groups(struct pdb_methods *methods,
2052                                       struct pdb_search *search)
2053 {
2054         return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2055 }
2056
2057 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2058                                        struct pdb_search *search,
2059                                        const struct dom_sid *sid)
2060 {
2061
2062         return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2063 }
2064
2065 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2066                                                      uint32_t idx)
2067 {
2068         if (idx < search->num_entries)
2069                 return &search->cache[idx];
2070
2071         if (search->search_ended)
2072                 return NULL;
2073
2074         while (idx >= search->num_entries) {
2075                 struct samr_displayentry entry;
2076
2077                 if (!search->next_entry(search, &entry)) {
2078                         search->search_end(search);
2079                         search->search_ended = True;
2080                         break;
2081                 }
2082
2083                 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2084                                    entry, &search->cache, &search->num_entries,
2085                                    &search->cache_size);
2086         }
2087
2088         return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2089 }
2090
2091 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2092 {
2093         struct pdb_methods *pdb = pdb_get_methods();
2094         struct pdb_search *result;
2095
2096         result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2097         if (result == NULL) {
2098                 return NULL;
2099         }
2100
2101         if (!pdb->search_users(pdb, result, acct_flags)) {
2102                 TALLOC_FREE(result);
2103                 return NULL;
2104         }
2105         return result;
2106 }
2107
2108 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2109 {
2110         struct pdb_methods *pdb = pdb_get_methods();
2111         struct pdb_search *result;
2112
2113         result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2114         if (result == NULL) {
2115                  return NULL;
2116         }
2117
2118         if (!pdb->search_groups(pdb, result)) {
2119                 TALLOC_FREE(result);
2120                 return NULL;
2121         }
2122         return result;
2123 }
2124
2125 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2126 {
2127         struct pdb_methods *pdb = pdb_get_methods();
2128         struct pdb_search *result;
2129
2130         if (pdb == NULL) return NULL;
2131
2132         result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2133         if (result == NULL) {
2134                 return NULL;
2135         }
2136
2137         if (!pdb->search_aliases(pdb, result, sid)) {
2138                 TALLOC_FREE(result);
2139                 return NULL;
2140         }
2141         return result;
2142 }
2143
2144 uint32_t pdb_search_entries(struct pdb_search *search,
2145                           uint32_t start_idx, uint32_t max_entries,
2146                           struct samr_displayentry **result)
2147 {
2148         struct samr_displayentry *end_entry;
2149         uint32_t end_idx = start_idx+max_entries-1;
2150
2151         /* The first entry needs to be searched after the last. Otherwise the
2152          * first entry might have moved due to a realloc during the search for
2153          * the last entry. */
2154
2155         end_entry = pdb_search_getentry(search, end_idx);
2156         *result = pdb_search_getentry(search, start_idx);
2157
2158         if (end_entry != NULL)
2159                 return max_entries;
2160
2161         if (start_idx >= search->num_entries)
2162                 return 0;
2163
2164         return search->num_entries - start_idx;
2165 }
2166
2167 /*******************************************************************
2168  trustdom methods
2169  *******************************************************************/
2170
2171 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2172                            time_t *pass_last_set_time)
2173 {
2174         struct pdb_methods *pdb = pdb_get_methods();
2175         return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2176                         pass_last_set_time);
2177 }
2178
2179 NTSTATUS pdb_get_trusteddom_creds(const char *domain, TALLOC_CTX *mem_ctx,
2180                                   struct cli_credentials **creds)
2181 {
2182         struct pdb_methods *pdb = pdb_get_methods();
2183         return pdb->get_trusteddom_creds(pdb, domain, mem_ctx, creds);
2184 }
2185
2186 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2187                            const struct dom_sid *sid)
2188 {
2189         struct pdb_methods *pdb = pdb_get_methods();
2190         return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2191 }
2192
2193 bool pdb_del_trusteddom_pw(const char *domain)
2194 {
2195         struct pdb_methods *pdb = pdb_get_methods();
2196         return pdb->del_trusteddom_pw(pdb, domain);
2197 }
2198
2199 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2200                               struct trustdom_info ***domains)
2201 {
2202         struct pdb_methods *pdb = pdb_get_methods();
2203         return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2204 }
2205
2206 /*******************************************************************
2207  the defaults for trustdom methods:
2208  these simply call the original passdb/secrets.c actions,
2209  to be replaced by pdb_ldap.
2210  *******************************************************************/
2211
2212 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2213                                           const char *domain,
2214                                           char** pwd,
2215                                           struct dom_sid *sid,
2216                                           time_t *pass_last_set_time)
2217 {
2218         return secrets_fetch_trusted_domain_password(domain, pwd,
2219                                 sid, pass_last_set_time);
2220
2221 }
2222
2223 static NTSTATUS pdb_default_get_trusteddom_creds(struct pdb_methods *methods,
2224                                                  const char *domain,
2225                                                  TALLOC_CTX *mem_ctx,
2226                                                  struct cli_credentials **creds)
2227 {
2228         *creds = NULL;
2229         return NT_STATUS_NOT_IMPLEMENTED;
2230 }
2231
2232 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2233                                           const char* domain,
2234                                           const char* pwd,
2235                                           const struct dom_sid *sid)
2236 {
2237         return secrets_store_trusted_domain_password(domain, pwd, sid);
2238 }
2239
2240 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2241                                           const char *domain)
2242 {
2243         return trusted_domain_password_delete(domain);
2244 }
2245
2246 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2247                                              TALLOC_CTX *mem_ctx,
2248                                              uint32_t *num_domains,
2249                                              struct trustdom_info ***domains)
2250 {
2251         return secrets_trusted_domains(mem_ctx, num_domains, domains);
2252 }
2253
2254 /*******************************************************************
2255  trusted_domain methods
2256  *******************************************************************/
2257
2258 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2259                                 struct pdb_trusted_domain **td)
2260 {
2261         struct pdb_methods *pdb = pdb_get_methods();
2262         return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2263 }
2264
2265 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2266                                 struct pdb_trusted_domain **td)
2267 {
2268         struct pdb_methods *pdb = pdb_get_methods();
2269         return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2270 }
2271
2272 NTSTATUS pdb_set_trusted_domain(const char* domain,
2273                                 const struct pdb_trusted_domain *td)
2274 {
2275         struct pdb_methods *pdb = pdb_get_methods();
2276         return pdb->set_trusted_domain(pdb, domain, td);
2277 }
2278
2279 NTSTATUS pdb_del_trusted_domain(const char *domain)
2280 {
2281         struct pdb_methods *pdb = pdb_get_methods();
2282         return pdb->del_trusted_domain(pdb, domain);
2283 }
2284
2285 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2286                                   struct pdb_trusted_domain ***domains)
2287 {
2288         struct pdb_methods *pdb = pdb_get_methods();
2289         return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2290 }
2291
2292 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2293                                                TALLOC_CTX *mem_ctx,
2294                                                const char *domain,
2295                                                struct pdb_trusted_domain **td)
2296 {
2297         struct trustAuthInOutBlob taiob;
2298         struct AuthenticationInformation aia;
2299         struct pdb_trusted_domain *tdom;
2300         enum ndr_err_code ndr_err;
2301         time_t last_set_time;
2302         char *pwd;
2303         bool ok;
2304
2305         tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2306         if (!tdom) {
2307                 return NT_STATUS_NO_MEMORY;
2308         }
2309
2310         tdom->domain_name = talloc_strdup(tdom, domain);
2311         tdom->netbios_name = talloc_strdup(tdom, domain);
2312         if (!tdom->domain_name || !tdom->netbios_name) {
2313                 talloc_free(tdom);
2314                 return NT_STATUS_NO_MEMORY;
2315         }
2316
2317         tdom->trust_auth_incoming = data_blob_null;
2318
2319         ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2320                                    &last_set_time);
2321         if (!ok) {
2322                 talloc_free(tdom);
2323                 return NT_STATUS_UNSUCCESSFUL;
2324         }
2325
2326         ZERO_STRUCT(taiob);
2327         ZERO_STRUCT(aia);
2328         taiob.count = 1;
2329         taiob.current.count = 1;
2330         taiob.current.array = &aia;
2331         unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2332
2333         aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2334         aia.AuthInfo.clear.size = strlen(pwd);
2335         aia.AuthInfo.clear.password = (uint8_t *)talloc_memdup(tdom, pwd,
2336                                                                aia.AuthInfo.clear.size);
2337         SAFE_FREE(pwd);
2338         if (aia.AuthInfo.clear.password == NULL) {
2339                 talloc_free(tdom);
2340                 return NT_STATUS_NO_MEMORY;
2341         }
2342
2343         taiob.previous.count = 0;
2344         taiob.previous.array = NULL;
2345
2346         ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2347                                         tdom, &taiob,
2348                         (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2349         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2350                 talloc_free(tdom);
2351                 return NT_STATUS_UNSUCCESSFUL;
2352         }
2353
2354         tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2355         tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2356         tdom->trust_attributes = 0;
2357         tdom->trust_forest_trust_info = data_blob_null;
2358
2359         *td = tdom;
2360         return NT_STATUS_OK;
2361 }
2362
2363 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2364                                                       TALLOC_CTX *mem_ctx,
2365                                                       struct dom_sid *sid,
2366                                                       struct pdb_trusted_domain **td)
2367 {
2368         return NT_STATUS_NOT_IMPLEMENTED;
2369 }
2370
2371 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2372
2373 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2374                                                const char* domain,
2375                                                const struct pdb_trusted_domain *td)
2376 {
2377         struct trustAuthInOutBlob taiob;
2378         struct AuthenticationInformation *aia;
2379         enum ndr_err_code ndr_err;
2380         char *pwd;
2381         bool ok;
2382
2383         if (td->trust_attributes != 0 ||
2384             td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2385             td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2386             !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2387             !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2388             return NT_STATUS_NOT_IMPLEMENTED;
2389         }
2390
2391         ZERO_STRUCT(taiob);
2392         ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2393                               &taiob,
2394                               (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2395         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2396                 return NT_STATUS_UNSUCCESSFUL;
2397         }
2398
2399         aia = (struct AuthenticationInformation *) taiob.current.array;
2400
2401         if (taiob.count != 1 || taiob.current.count != 1 ||
2402             taiob.previous.count != 0 ||
2403             aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2404             return NT_STATUS_NOT_IMPLEMENTED;
2405         }
2406
2407         pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2408                              aia->AuthInfo.clear.size);
2409         if (!pwd) {
2410                 return NT_STATUS_NO_MEMORY;
2411         }
2412
2413         ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2414         if (!ok) {
2415                 return NT_STATUS_UNSUCCESSFUL;
2416         }
2417
2418         return NT_STATUS_OK;
2419 }
2420
2421 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2422                                                const char *domain)
2423 {
2424         return NT_STATUS_NOT_IMPLEMENTED;
2425 }
2426
2427 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2428                                                  TALLOC_CTX *mem_ctx,
2429                                                  uint32_t *num_domains,
2430                                                  struct pdb_trusted_domain ***domains)
2431 {
2432         return NT_STATUS_NOT_IMPLEMENTED;
2433 }
2434
2435 static struct pdb_domain_info *pdb_default_get_domain_info(
2436         struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2437 {
2438         return NULL;
2439 }
2440
2441 /*****************************************************************
2442  UPN suffixes
2443  *****************************************************************/
2444 static NTSTATUS pdb_default_enum_upn_suffixes(struct pdb_methods *pdb,
2445                                               TALLOC_CTX *mem_ctx,
2446                                               uint32_t *num_suffixes,
2447                                               char ***suffixes)
2448 {
2449         return NT_STATUS_NOT_IMPLEMENTED;
2450 }
2451
2452 static NTSTATUS pdb_default_set_upn_suffixes(struct pdb_methods *pdb,
2453                                              uint32_t num_suffixes,
2454                                              const char **suffixes)
2455 {
2456         return NT_STATUS_NOT_IMPLEMENTED;
2457 }
2458
2459 NTSTATUS pdb_enum_upn_suffixes(TALLOC_CTX *mem_ctx,
2460                                uint32_t *num_suffixes,
2461                                char ***suffixes)
2462 {
2463         struct pdb_methods *pdb = pdb_get_methods();
2464         return pdb->enum_upn_suffixes(pdb, mem_ctx, num_suffixes, suffixes);
2465 }
2466
2467 NTSTATUS pdb_set_upn_suffixes(uint32_t num_suffixes,
2468                               const char **suffixes)
2469 {
2470         struct pdb_methods *pdb = pdb_get_methods();
2471         return pdb->set_upn_suffixes(pdb, num_suffixes, suffixes);
2472 }
2473
2474 /*******************************************************************
2475  idmap control methods
2476  *******************************************************************/
2477 static bool pdb_default_is_responsible_for_our_sam(
2478                                         struct pdb_methods *methods)
2479 {
2480         return true;
2481 }
2482
2483 static bool pdb_default_is_responsible_for_builtin(
2484                                         struct pdb_methods *methods)
2485 {
2486         return true;
2487 }
2488
2489 static bool pdb_default_is_responsible_for_wellknown(
2490                                         struct pdb_methods *methods)
2491 {
2492         return false;
2493 }
2494
2495 static bool pdb_default_is_responsible_for_unix_users(
2496                                         struct pdb_methods *methods)
2497 {
2498         return true;
2499 }
2500
2501 static bool pdb_default_is_responsible_for_unix_groups(
2502                                         struct pdb_methods *methods)
2503 {
2504         return true;
2505 }
2506
2507 static bool pdb_default_is_responsible_for_everything_else(
2508                                         struct pdb_methods *methods)
2509 {
2510         return false;
2511 }
2512
2513 bool pdb_is_responsible_for_our_sam(void)
2514 {
2515         struct pdb_methods *pdb = pdb_get_methods();
2516         return pdb->is_responsible_for_our_sam(pdb);
2517 }
2518
2519 bool pdb_is_responsible_for_builtin(void)
2520 {
2521         struct pdb_methods *pdb = pdb_get_methods();
2522         return pdb->is_responsible_for_builtin(pdb);
2523 }
2524
2525 bool pdb_is_responsible_for_wellknown(void)
2526 {
2527         struct pdb_methods *pdb = pdb_get_methods();
2528         return pdb->is_responsible_for_wellknown(pdb);
2529 }
2530
2531 bool pdb_is_responsible_for_unix_users(void)
2532 {
2533         struct pdb_methods *pdb = pdb_get_methods();
2534         return pdb->is_responsible_for_unix_users(pdb);
2535 }
2536
2537 bool pdb_is_responsible_for_unix_groups(void)
2538 {
2539         struct pdb_methods *pdb = pdb_get_methods();
2540         return pdb->is_responsible_for_unix_groups(pdb);
2541 }
2542
2543 bool pdb_is_responsible_for_everything_else(void)
2544 {
2545         struct pdb_methods *pdb = pdb_get_methods();
2546         return pdb->is_responsible_for_everything_else(pdb);
2547 }
2548
2549 /*******************************************************************
2550  secret methods
2551  *******************************************************************/
2552
2553 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2554                         const char *secret_name,
2555                         DATA_BLOB *secret_current,
2556                         NTTIME *secret_current_lastchange,
2557                         DATA_BLOB *secret_old,
2558                         NTTIME *secret_old_lastchange,
2559                         struct security_descriptor **sd)
2560 {
2561         struct pdb_methods *pdb = pdb_get_methods();
2562         return pdb->get_secret(pdb, mem_ctx, secret_name,
2563                                secret_current, secret_current_lastchange,
2564                                secret_old, secret_old_lastchange,
2565                                sd);
2566 }
2567
2568 NTSTATUS pdb_set_secret(const char *secret_name,
2569                         DATA_BLOB *secret_current,
2570                         DATA_BLOB *secret_old,
2571                         struct security_descriptor *sd)
2572 {
2573         struct pdb_methods *pdb = pdb_get_methods();
2574         return pdb->set_secret(pdb, secret_name,
2575                                secret_current,
2576                                secret_old,
2577                                sd);
2578 }
2579
2580 NTSTATUS pdb_delete_secret(const char *secret_name)
2581 {
2582         struct pdb_methods *pdb = pdb_get_methods();
2583         return pdb->delete_secret(pdb, secret_name);
2584 }
2585
2586 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2587                                        TALLOC_CTX *mem_ctx,
2588                                        const char *secret_name,
2589                                        DATA_BLOB *secret_current,
2590                                        NTTIME *secret_current_lastchange,
2591                                        DATA_BLOB *secret_old,
2592                                        NTTIME *secret_old_lastchange,
2593                                        struct security_descriptor **sd)
2594 {
2595         return lsa_secret_get(mem_ctx, secret_name,
2596                               secret_current,
2597                               secret_current_lastchange,
2598                               secret_old,
2599                               secret_old_lastchange,
2600                               sd);
2601 }
2602
2603 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2604                                        const char *secret_name,
2605                                        DATA_BLOB *secret_current,
2606                                        DATA_BLOB *secret_old,
2607                                        struct security_descriptor *sd)
2608 {
2609         return lsa_secret_set(secret_name,
2610                               secret_current,
2611                               secret_old,
2612                               sd);
2613 }
2614
2615 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2616                                           const char *secret_name)
2617 {
2618         return lsa_secret_delete(secret_name);
2619 }
2620
2621 /*******************************************************************
2622  Create a pdb_methods structure and initialize it with the default
2623  operations.  In this way a passdb module can simply implement
2624  the functionality it cares about.  However, normally this is done
2625  in groups of related functions.
2626 *******************************************************************/
2627
2628 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2629 {
2630         /* allocate memory for the structure as its own talloc CTX */
2631
2632         *methods = talloc_zero(NULL, struct pdb_methods);
2633         if (*methods == NULL) {
2634                 return NT_STATUS_NO_MEMORY;
2635         }
2636
2637         (*methods)->get_domain_info = pdb_default_get_domain_info;
2638         (*methods)->getsampwnam = pdb_default_getsampwnam;
2639         (*methods)->getsampwsid = pdb_default_getsampwsid;
2640         (*methods)->create_user = pdb_default_create_user;
2641         (*methods)->delete_user = pdb_default_delete_user;
2642         (*methods)->add_sam_account = pdb_default_add_sam_account;
2643         (*methods)->update_sam_account = pdb_default_update_sam_account;
2644         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2645         (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2646         (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2647
2648         (*methods)->getgrsid = pdb_default_getgrsid;
2649         (*methods)->getgrgid = pdb_default_getgrgid;
2650         (*methods)->getgrnam = pdb_default_getgrnam;
2651         (*methods)->create_dom_group = pdb_default_create_dom_group;
2652         (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2653         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2654         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2655         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2656         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2657         (*methods)->enum_group_members = pdb_default_enum_group_members;
2658         (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2659         (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2660         (*methods)->add_groupmem = pdb_default_add_groupmem;
2661         (*methods)->del_groupmem = pdb_default_del_groupmem;
2662         (*methods)->create_alias = pdb_default_create_alias;
2663         (*methods)->delete_alias = pdb_default_delete_alias;
2664         (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2665         (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2666         (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2667         (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2668         (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2669         (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2670         (*methods)->lookup_rids = pdb_default_lookup_rids;
2671         (*methods)->get_account_policy = pdb_default_get_account_policy;
2672         (*methods)->set_account_policy = pdb_default_set_account_policy;
2673         (*methods)->get_seq_num = pdb_default_get_seq_num;
2674         (*methods)->id_to_sid = pdb_default_id_to_sid;
2675         (*methods)->sid_to_id = pdb_default_sid_to_id;
2676
2677         (*methods)->search_groups = pdb_default_search_groups;
2678         (*methods)->search_aliases = pdb_default_search_aliases;
2679
2680         (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2681         (*methods)->get_trusteddom_creds = pdb_default_get_trusteddom_creds;
2682         (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2683         (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2684         (*methods)->enum_trusteddoms  = pdb_default_enum_trusteddoms;
2685
2686         (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2687         (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2688         (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2689         (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2690         (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2691
2692         (*methods)->get_secret = pdb_default_get_secret;
2693         (*methods)->set_secret = pdb_default_set_secret;
2694         (*methods)->delete_secret = pdb_default_delete_secret;
2695
2696         (*methods)->enum_upn_suffixes = pdb_default_enum_upn_suffixes;
2697         (*methods)->set_upn_suffixes  = pdb_default_set_upn_suffixes;
2698
2699         (*methods)->is_responsible_for_our_sam =
2700                                 pdb_default_is_responsible_for_our_sam;
2701         (*methods)->is_responsible_for_builtin =
2702                                 pdb_default_is_responsible_for_builtin;
2703         (*methods)->is_responsible_for_wellknown =
2704                                 pdb_default_is_responsible_for_wellknown;
2705         (*methods)->is_responsible_for_unix_users =
2706                                 pdb_default_is_responsible_for_unix_users;
2707         (*methods)->is_responsible_for_unix_groups =
2708                                 pdb_default_is_responsible_for_unix_groups;
2709         (*methods)->is_responsible_for_everything_else =
2710                                 pdb_default_is_responsible_for_everything_else;
2711
2712         return NT_STATUS_OK;
2713 }